EP0663723A4 - Filterschaltung. - Google Patents

Filterschaltung.

Info

Publication number
EP0663723A4
EP0663723A4 EP94921821A EP94921821A EP0663723A4 EP 0663723 A4 EP0663723 A4 EP 0663723A4 EP 94921821 A EP94921821 A EP 94921821A EP 94921821 A EP94921821 A EP 94921821A EP 0663723 A4 EP0663723 A4 EP 0663723A4
Authority
EP
European Patent Office
Prior art keywords
transistor
filter circuit
resistance
grounded
capacitor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94921821A
Other languages
English (en)
French (fr)
Other versions
EP0663723B1 (de
EP0663723A1 (de
Inventor
Takuji Yamamoto
Naoki Kuwata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to EP98120133A priority Critical patent/EP0915565B1/de
Priority to EP99114140A priority patent/EP0951144B1/de
Publication of EP0663723A1 publication Critical patent/EP0663723A1/de
Publication of EP0663723A4 publication Critical patent/EP0663723A4/de
Application granted granted Critical
Publication of EP0663723B1 publication Critical patent/EP0663723B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/4521—Complementary long tailed pairs having parallel inputs and being supplied in parallel
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45085—Long tailed pairs
    • H03F3/45089—Non-folded cascode stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks
    • H03H11/12—Frequency selective two-port networks using amplifiers with feedback
    • H03H11/1291—Current or voltage controlled filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45018—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors have added cross couplings
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45022—One or more added resistors to the amplifying transistors in the differential amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45024—Indexing scheme relating to differential amplifiers the differential amplifier amplifying transistors are cascode coupled transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45034—One or more added reactive elements, capacitive or inductive elements, to the amplifying transistors in the differential amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Networks Using Active Elements (AREA)
  • Optical Communication System (AREA)
EP94921821A 1993-07-27 1994-07-26 Filterschaltung Expired - Lifetime EP0663723B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98120133A EP0915565B1 (de) 1993-07-27 1994-07-26 Filterschaltung
EP99114140A EP0951144B1 (de) 1993-07-27 1994-07-26 Filterschaltung

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP18425693 1993-07-27
JP184256/93 1993-07-27
JP18425693 1993-07-27
JP14733/94 1994-02-09
JP1473394 1994-02-09
JP1473394 1994-02-09
PCT/JP1994/001234 WO1995004401A1 (fr) 1993-07-27 1994-07-26 Circuit filtrant

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP99114140A Division EP0951144B1 (de) 1993-07-27 1994-07-26 Filterschaltung
EP98120133A Division EP0915565B1 (de) 1993-07-27 1994-07-26 Filterschaltung

Publications (3)

Publication Number Publication Date
EP0663723A1 EP0663723A1 (de) 1995-07-19
EP0663723A4 true EP0663723A4 (de) 1995-11-29
EP0663723B1 EP0663723B1 (de) 2000-10-04

Family

ID=26350747

Family Applications (3)

Application Number Title Priority Date Filing Date
EP98120133A Expired - Lifetime EP0915565B1 (de) 1993-07-27 1994-07-26 Filterschaltung
EP99114140A Expired - Lifetime EP0951144B1 (de) 1993-07-27 1994-07-26 Filterschaltung
EP94921821A Expired - Lifetime EP0663723B1 (de) 1993-07-27 1994-07-26 Filterschaltung

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP98120133A Expired - Lifetime EP0915565B1 (de) 1993-07-27 1994-07-26 Filterschaltung
EP99114140A Expired - Lifetime EP0951144B1 (de) 1993-07-27 1994-07-26 Filterschaltung

Country Status (4)

Country Link
EP (3) EP0915565B1 (de)
JP (1) JP3153242B2 (de)
DE (3) DE69433218T2 (de)
WO (1) WO1995004401A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19740193C1 (de) * 1997-09-12 1999-03-11 Siemens Ag Integriertes Tiefpaßfilter
DE102004017788B4 (de) 2004-04-02 2008-01-03 Atmel Germany Gmbh Oszillator mit abstimmbarer Diffusionskapazität als Schwingkreiskapazität
US7205836B2 (en) 2005-05-03 2007-04-17 M/A-Com, Inc. SiGe differential cascode amplifier with miller effect resonator
WO2019110128A1 (en) * 2017-12-08 2019-06-13 Telefonaktiebolaget Lm Ericsson (Publ) A combined mixer and filter circuitry
US12028033B2 (en) 2020-05-20 2024-07-02 Telefonaktiebolaget Lm Ericsson (Publ) Filter circuitry using active inductor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077559A (en) * 1980-06-06 1981-12-16 Nat Res Dev Variable characteristic filters
EP0125426A2 (de) * 1983-05-16 1984-11-21 International Business Machines Corporation Integrierte Filteranordnung mit einstellbaren Übertragungsfunktionen

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3419812A (en) * 1966-09-02 1968-12-31 Air Force Usa Bandpass amplifier
JPS4936839U (de) * 1972-07-03 1974-04-01
JPS49148838U (de) * 1973-04-23 1974-12-23
JPS5140737A (ja) * 1974-10-02 1976-04-05 Hitachi Ltd Saishoisosuiigatatokaki
JPS54135137U (de) * 1978-03-11 1979-09-19
FR2469043B1 (fr) * 1979-10-31 1986-01-24 Enertec Filtres accordes par commutation et utilisation dans un egalisateur d'enregistrement magnetique
JPS56166616A (en) * 1980-05-28 1981-12-21 Fujitsu Ltd Filter switching circuit
DE3785942T2 (de) * 1986-01-10 1993-11-18 Hitachi Ltd Verstärkeranordnung für ein aktives Filter.
JPH0738556B2 (ja) * 1986-01-10 1995-04-26 株式会社日立製作所 積分回路
JPH0244425U (de) * 1988-09-21 1990-03-27
JPH02202212A (ja) * 1989-01-31 1990-08-10 Canon Inc 可変抵抗回路
JPH0423607A (ja) * 1990-05-18 1992-01-28 Fujitsu Ltd フィルタ回路
JPH0457979U (de) * 1990-09-26 1992-05-19
JPH04150513A (ja) * 1990-10-15 1992-05-25 Sony Corp フィルタ回路
US5130579A (en) * 1990-11-19 1992-07-14 Ericsson Ge Mobile Communications Inc. Active lowpass ripple filter
US5099155A (en) * 1991-04-22 1992-03-24 Pacific Monolithics Active element filter network
JP3080723B2 (ja) * 1991-10-17 2000-08-28 富士通株式会社 フィルタ回路及びフィルタ集積回路
JPH05140737A (ja) 1991-11-18 1993-06-08 Ricoh Co Ltd 窒化鉄磁性薄膜含有積層体とその製法
JPH06310983A (ja) * 1993-04-27 1994-11-04 Matsushita Electric Ind Co Ltd 遅延回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2077559A (en) * 1980-06-06 1981-12-16 Nat Res Dev Variable characteristic filters
EP0125426A2 (de) * 1983-05-16 1984-11-21 International Business Machines Corporation Integrierte Filteranordnung mit einstellbaren Übertragungsfunktionen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO9504401A1 *

Also Published As

Publication number Publication date
DE69433184D1 (de) 2003-10-30
WO1995004401A1 (fr) 1995-02-09
EP0951144B1 (de) 2003-10-01
EP0915565A3 (de) 2000-03-22
EP0951144A3 (de) 2000-03-22
EP0915565A2 (de) 1999-05-12
EP0915565B1 (de) 2003-09-24
DE69426061T2 (de) 2001-05-10
DE69433218T2 (de) 2004-07-22
JP3153242B2 (ja) 2001-04-03
DE69426061D1 (de) 2000-11-09
EP0663723B1 (de) 2000-10-04
EP0663723A1 (de) 1995-07-19
DE69433184T2 (de) 2004-06-03
DE69433218D1 (de) 2003-11-06
EP0951144A2 (de) 1999-10-20

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